Berkeley Lab’s Nuclear Science Division has received two Department of Energy (DOE) funding awards for two-year projects focused on artificial intelligence and machine learning (AI/ML).
A collaboration of Nuclear Science Division (NSD) scientists from the Low-Energy Nuclear Physics, 88” Cyclotron, and Applied Nuclear Physics programs will develop new methods to optimize a large gamma-ray spectrometer and an ion source for low-energy nuclear physics. The primary goal of this project is to explore the best applications of ML approaches and data analytics techniques to automate online optimization and tuning during operation, building on an existing ML project, started in 2021.
Scientists reported the first observations of how nuclei containing strange quarks flow from particle collisions that smash atomic nuclei together at high energies. They specifically tracked the flow patterns of so-called hypernuclei. These hypernuclei contain particles called hyperons (made of at least one strange quark) in addition to ordinary protons and neutrons (known as nucleons).
The U.S. particle physics community is preparing for a major research program with the Deep Underground Neutrino Experiment (DUNE). DUNE will study neutrino oscillations. These quantum mechanical oscillations are only possible because neutrinos have mass, albeit it very small masses. Research at DUNE will address key questions about neutrinos, such as whether they and their antineutrino counterparts behave differently.
Xin-Nian Wang, a senior scientist in the Nuclear Theory Group in Berkeley Lab’s Nuclear Science Division (NSD), and his collaborators have recently published new research (out today in Physical Review Letters) that explains the spin alignment of vector mesons in heavy-ion collisions, as observed by the STAR Collaboration at the Relativistic Heavy Ion Collider (RHIC).
June 7, 2023 ~
In research recently published in Physical Review Letters, the STAR collaboration has released the first observations of directed flow of hypernuclei. Xin Dong and Nu Xu, senior scientists in the Relativistic Nuclear Collisions group in Berkeley Lab’s Nuclear Science Division (NSD), are actively involved in this new research.